diff --git a/mtk/mtk/mtk-region.c b/mtk/mtk/mtk-region.c
index 7dd4b7b03..d132ead3d 100644
--- a/mtk/mtk/mtk-region.c
+++ b/mtk/mtk/mtk-region.c
@@ -387,3 +387,51 @@ mtk_region_scale (MtkRegion *region,
 
   return scaled_region;
 }
+
+MtkRegion *
+mtk_region_crop_and_scale (MtkRegion       *region,
+                           graphene_rect_t *src_rect,
+                           int              dst_width,
+                           int              dst_height)
+{
+  int n_rects, i;
+  MtkRectangle *rects;
+  MtkRegion *viewport_region;
+
+  if (G_APPROX_VALUE (src_rect->size.width, dst_width, FLT_EPSILON) &&
+      G_APPROX_VALUE (src_rect->size.height, dst_height, FLT_EPSILON) &&
+      G_APPROX_VALUE (roundf (src_rect->origin.x),
+                      src_rect->origin.x, FLT_EPSILON) &&
+      G_APPROX_VALUE (roundf (src_rect->origin.y),
+                      src_rect->origin.y, FLT_EPSILON))
+    {
+      viewport_region = mtk_region_copy (region);
+
+      if (!G_APPROX_VALUE (src_rect->origin.x, 0, FLT_EPSILON) ||
+          !G_APPROX_VALUE (src_rect->origin.y, 0, FLT_EPSILON))
+        {
+          mtk_region_translate (viewport_region,
+                                (int) src_rect->origin.x,
+                                (int) src_rect->origin.y);
+        }
+
+      return viewport_region;
+    }
+
+  n_rects = mtk_region_num_rectangles (region);
+  MTK_RECTANGLE_CREATE_ARRAY_SCOPED (n_rects, rects);
+  for (i = 0; i < n_rects; i++)
+    {
+      rects[i] = mtk_region_get_rectangle (region, i);
+
+      mtk_rectangle_crop_and_scale (&rects[i],
+                                    src_rect,
+                                    dst_width,
+                                    dst_height,
+                                    &rects[i]);
+    }
+
+  viewport_region = mtk_region_create_rectangles (rects, n_rects);
+
+  return viewport_region;
+}
diff --git a/mtk/mtk/mtk-region.h b/mtk/mtk/mtk-region.h
index 3a02f03e2..f4f6dcfec 100644
--- a/mtk/mtk/mtk-region.h
+++ b/mtk/mtk/mtk-region.h
@@ -118,4 +118,10 @@ MTK_EXPORT
 MtkRegion * mtk_region_scale (MtkRegion *region,
                               int        scale);
 
+MTK_EXPORT
+MtkRegion * mtk_region_crop_and_scale (MtkRegion       *region,
+                                       graphene_rect_t *src_rect,
+                                       int              dst_width,
+                                       int              dst_height);
+
 G_DEFINE_AUTOPTR_CLEANUP_FUNC (MtkRegion, mtk_region_unref)
diff --git a/src/compositor/region-utils.c b/src/compositor/region-utils.c
index 7efe96870..981e843c8 100644
--- a/src/compositor/region-utils.c
+++ b/src/compositor/region-utils.c
@@ -344,54 +344,6 @@ meta_region_transform (const MtkRegion      *region,
   return transformed_region;
 }
 
-MtkRegion *
-meta_region_crop_and_scale (MtkRegion       *region,
-                            graphene_rect_t *src_rect,
-                            int              dst_width,
-                            int              dst_height)
-{
-  int n_rects, i;
-  MtkRectangle *rects;
-  MtkRegion *viewport_region;
-
-  if (G_APPROX_VALUE (src_rect->size.width, dst_width, FLT_EPSILON) &&
-      G_APPROX_VALUE (src_rect->size.height, dst_height, FLT_EPSILON) &&
-      G_APPROX_VALUE (roundf (src_rect->origin.x),
-                      src_rect->origin.x, FLT_EPSILON) &&
-      G_APPROX_VALUE (roundf (src_rect->origin.y),
-                      src_rect->origin.y, FLT_EPSILON))
-    {
-      viewport_region = mtk_region_copy (region);
-
-      if (!G_APPROX_VALUE (src_rect->origin.x, 0, FLT_EPSILON) ||
-          !G_APPROX_VALUE (src_rect->origin.y, 0, FLT_EPSILON))
-        {
-          mtk_region_translate (viewport_region,
-                                (int) src_rect->origin.x,
-                                (int) src_rect->origin.y);
-        }
-
-      return viewport_region;
-    }
-
-  n_rects = mtk_region_num_rectangles (region);
-  MTK_RECTANGLE_CREATE_ARRAY_SCOPED (n_rects, rects);
-  for (i = 0; i < n_rects; i++)
-    {
-      rects[i] = mtk_region_get_rectangle (region, i);
-
-      mtk_rectangle_crop_and_scale (&rects[i],
-                                    src_rect,
-                                    dst_width,
-                                    dst_height,
-                                    &rects[i]);
-    }
-
-  viewport_region = mtk_region_create_rectangles (rects, n_rects);
-
-  return viewport_region;
-}
-
 MtkRegion *
 meta_region_apply_matrix_transform_expand (const MtkRegion   *region,
                                            graphene_matrix_t *transform)
diff --git a/src/compositor/region-utils.h b/src/compositor/region-utils.h
index 35311480b..7613aa9ec 100644
--- a/src/compositor/region-utils.h
+++ b/src/compositor/region-utils.h
@@ -102,12 +102,6 @@ MtkRegion * meta_region_transform (const MtkRegion      *region,
                                    int                   width,
                                    int                   height);
 
-MtkRegion * meta_region_crop_and_scale (MtkRegion       *region,
-                                        graphene_rect_t *src_rect,
-                                        int              dst_width,
-                                        int              dst_height);
-
-
 MtkRegion *
 meta_region_apply_matrix_transform_expand (const MtkRegion   *region,
                                            graphene_matrix_t *transform);
diff --git a/src/wayland/meta-wayland-surface.c b/src/wayland/meta-wayland-surface.c
index 92d8de99d..4d490a884 100644
--- a/src/wayland/meta-wayland-surface.c
+++ b/src/wayland/meta-wayland-surface.c
@@ -331,10 +331,10 @@ surface_process_damage (MetaWaylandSurface *surface,
             .size.height = height / surface_scale
           };
         }
-      viewport_region = meta_region_crop_and_scale (surface_region,
-                                                    &src_rect,
-                                                    surface_rect.width,
-                                                    surface_rect.height);
+      viewport_region = mtk_region_crop_and_scale (surface_region,
+                                                   &src_rect,
+                                                   surface_rect.width,
+                                                   surface_rect.height);
       scaled_region = mtk_region_scale (viewport_region, surface_scale);
       transformed_region = meta_region_transform (scaled_region,
                                                   surface->buffer_transform,